Monthly Normals of Meteorological Elements for Hong Kong, August 1971-2000
Climatological Information Services
> Climatological Normals and Extremes
> 1971-2000 Normals for Hong Kong (Grouped by month)
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| Meteorological Elements | ||||
|---|---|---|---|---|
| ATMOSPHERIC PRESSURE | Mean | 1005.1 | hPa | |
| Mean Diurnal Range | 3.5 | hPa | ||
| AIR TEMPERATURE | Mean Daily Maximum | 31.1 | deg. C | |
| Mean | 28.4 | deg. C | ||
| Mean Daily Minimum | 26.4 | deg. C | ||
| RELATIVE HUMIDITY | Mean | 82 | % | |
| AMOUNT OF CLOUD | 69 | % | ||
| RAINFALL | Total | 444.6 | mm | |
| Duration | 87 | hours | ||
| Number of Days with |
0.1 mm or above |
17.43 | ||
| 25.0 mm or above |
5.40 | |||
| 50.0 mm or above |
2.40 | |||
| NUMBER OF DAYS WITH THUNDERSTORM | 8.10 | |||
| NUMBER OF DAYS WITH FOG (Visibility < 1000 m) |
0 | |||
| SOIL TEMPERATURE AT 0700 HOURS |
0.5 m | 30.0 | deg. C | |
| 1.0 m | 29.4 | deg. C | ||
| BRIGHT SUNSHINE AT KING'S PARK |
Duration | 189.7 | hours | |
| Percentage of Possible | 48 | % | ||
| WIND AT WAGLAN ISLAND |
Prevailing Direction | 240 | degrees | |
| Mean Speed | 20.0 | km/h | ||
| SEA SURFACE TEMPERATURE AT NORTH POINT AT 0700 HOURS * |
26.5 | deg. C | ||
Note : All measurements were made at the Hong Kong Observatory except
where specified.
* 1975 - 2004